Water for drinking, agriculture, and industry is supplied through two ways in the province: surface and subterranean. Surface sources are the 6 permanent rivers Sistan, Shirdel, Golmir in Sistan and Ladiz, Bampour,Sarbaz in Balouchestn. Water for agriculture in Sistan is supplied through river Hirmand and un the time of water shortage through half well reservoirs having capacity of about 660 million cubic m. The drinking water for Zabol and about 850 villages surrounding it, is at the present supplied through half well reservoirs. The surface water utilization of Balouchestn is done through Bampoor Deviational dam in Iranshahr and Pishin dam in Chabahar.